The action is expected to start within a week and will involve paramedics speaking-out about their working conditions, in defiance of Ambulance Victoria policy.

It does not yet involve strike action.

The union's Steve McGhie, says paramedics are fed-up.

"Paramedics are very disappointed and very frustrated it's come to this," he said.

"I did write to the Premier 12 months ago about allowing the industrial umpire to do an assessment of paramedics' wages, to avoid any industrial disputation, and unfortunately that was and here we are 12 months later with the industrial bans looming in a week's time," he said.

He says paramedics will defy Ambulance Victoria policy and speak-out about their work conditions.

"Ambulance paramedics as part of protected industrial action will commence raising issues publicly and in the press, and they'll be briefing the press and they'll be raising the concerns about the crisis in the ambulance service and also about their role as paramedics and their conditions and the pressures that they're under," Mr McGhie said.